841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

25/03/2024, 20:59

25/03/2024, 20:56

25/03/2024, 20:51

25/03/2024, 20:45

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Analysis

max time kernel
18s
max time network
16s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:59

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General

Target

Prefetch/TRUSTEDINSTALLER.EXE-766EFF52.pf
Size

5KB
MD5

15d917216c462eaab500c6c47fd82b13
SHA1

d3e0f113eb75669ec2ec3dc430739effd0c4ffb7
SHA256

05bdd8ab5cd54d22b06d91cffa5eae5762c25c3ac648b3815ea1a28fbb4cec02
SHA512

f9c7bc18b14e806df1eee05d1875e9aa62bd569c368c5ab59a7fab4b590730570104be6a0d58cf46043ab454b2ae1c02e0893b17b3b885b5be59abd36d025ece
SSDEEP

96:Q+eEXT0yWDxnrssR5IT0MUNIKW6TP0/5s9JlafeFtHI8Cf7aGP1tdVXGR:J6yenosR5IUnrTC5s3FFJIvjpP1tdNGR

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\pf_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2610426812-2871295383-373749122-1000_CLASSES\.pf	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2560	AcroRd32.exe
2560	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2788 wrote to memory of 1856	2788	cmd.exe	29
PID 2788 wrote to memory of 1856	2788	cmd.exe	29
PID 2788 wrote to memory of 1856	2788	cmd.exe	29
PID 1856 wrote to memory of 2560	1856	rundll32.exe	30
PID 1856 wrote to memory of 2560	1856	rundll32.exe	30
PID 1856 wrote to memory of 2560	1856	rundll32.exe	30
PID 1856 wrote to memory of 2560	1856	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\TRUSTEDINSTALLER.EXE-766EFF52.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2788
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\TRUSTEDINSTALLER.EXE-766EFF52.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Prefetch\TRUSTEDINSTALLER.EXE-766EFF52.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
d9a068d7ab3247ac8fd9c4837a1ea95e

SHA1
ee0934743bbfba58206af704896862e1731e603a

SHA256
fc3c2bd7a5b96fef42c7565d9a87a273370e1f250d87a4341a5abdfcc0e87fd0

SHA512
531f26ad3888192547a3a7ec69bd6fe040f1d3427f06f1ff66f8ffe0ac035f616702caa26fd50d089afd628f52882dcf2afc0fc151c326c25ffa115891b80ac4

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